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/*
* Copyright 2022 Anton Tananaev (anton@traccar.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.traccar.reports;
import org.traccar.helper.DateUtil;
import org.traccar.helper.model.PositionUtil;
import org.traccar.model.Position;
import org.traccar.storage.Storage;
import org.traccar.storage.StorageException;
import jakarta.inject.Inject;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.Objects;
import java.util.function.Function;
import java.util.stream.Collectors;
public class CsvExportProvider {
private final Storage storage;
@Inject
public CsvExportProvider(Storage storage) {
this.storage = storage;
}
public void generate(
OutputStream outputStream, long deviceId, Date from, Date to) throws StorageException {
var positions = PositionUtil.getPositions(storage, deviceId, from, to);
var attributes = positions.stream()
.flatMap((position -> position.getAttributes().keySet().stream()))
.collect(Collectors.toUnmodifiableSet());
var properties = new LinkedHashMap<String, Function<Position, Object>>();
properties.put("id", Position::getId);
properties.put("deviceId", Position::getDeviceId);
properties.put("protocol", Position::getProtocol);
properties.put("serverTime", position -> DateUtil.formatDate(position.getServerTime()));
properties.put("deviceTime", position -> DateUtil.formatDate(position.getDeviceTime()));
properties.put("fixTime", position -> DateUtil.formatDate(position.getFixTime()));
properties.put("valid", Position::getValid);
properties.put("latitude", Position::getLatitude);
properties.put("longitude", Position::getLongitude);
properties.put("altitude", Position::getAltitude);
properties.put("speed", Position::getSpeed);
properties.put("course", Position::getCourse);
properties.put("address", Position::getAddress);
properties.put("accuracy", Position::getAccuracy);
attributes.forEach(key -> properties.put(key, position -> position.getAttributes().get(key)));
try (PrintWriter writer = new PrintWriter(outputStream)) {
writer.println(String.join(",", properties.keySet()));
positions.forEach(position -> writer.println(properties.values().stream()
.map(f -> Objects.toString(f.apply(position), ""))
.collect(Collectors.joining(","))));
}
}
}
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